Go Back Action?

[gustter]

Hi.

How can I implement a go back action on iOS? I've an wizViewManager with a site but when I click a link then i can't go back.

Thanks.

[jrouault]

Hello,

Implementing a back action should be pretty straight-forward.

According to the actual style of this plugin I would go for something like this:

• in wizViewManager.js:

View.prototype.goBack = function (success, failure) {
    cordova.exec(success, failure, "WizViewManagerPlugin", "goBack", [this.name]);                      
};

WizViewManager.prototype.goBack = function (name, success, failure) {
    if (!this.views[name]) {
        return this.throwError(failure, new Error('Show Error with view name: ' + name + '. View does not exist'));
    }

    this.views[name].goBack(success, failure);
};

• in WizViewManagerPlugin.m:

- (void)goBack:(CDVInvokedUrlCommand *)command {
    NSString *viewName = [command.arguments objectAtIndex:0];
    if ([wizViewList objectForKey:viewName]) {
        UIWebView *targetWebView = [wizViewList objectForKey:viewName];
        if ([targetWebView canGoBack]) {
            [targetWebView goBack];
            CDVPluginResult *pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK];
            [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
        } else {
            CDVPluginResult *pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsDictionary:
                    [self throwError:1 description:@"View not found"]];
            [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];            
        }
    } else {
        CDVPluginResult *pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsDictionary:
                [self throwError:1 description:@"View not found"]];
        [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
    }
}

⚠️ I wrote this quickly so you will probably have to adapt/correct it and clean it a bit in order to make it works.

Feel free to comment here if you have any difficulty implementing it.
Once it's done and tested, it would be really nice if you could make a PR with this feature.

You can find more information on UIWebView here:
https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIWebView_Class/#//apple_ref/occ/instm/UIWebView/goBack